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Preparation Method Of Hexagonal Boron Nitride

wallpapers Resource 2020-11-16
Hexagonal Boron Nitride
 
Hexagonal boron nitride is the only boron nitride phase that exists in nature. It belongs to the hexagonal crystal system. It is white and has layered structure characteristics and lattice parameters similar to graphene, so it is also called white graphene. It has excellent high temperature resistance, thermal shock resistance, high temperature thermal stability, corrosion resistance and easy cutting processing comprehensive characteristics, and has broad application prospects in the fields of metallurgy, chemical industry, electronics and new energy.
 
Features
 
Hexagonal boron nitride has high activity and fewer impurities, stable product quality, good electrical insulation, low dielectric constant and dielectric loss, high temperature stability, good thermal conductivity, good lubricating properties, chemical inert substances, Non-wetting to metals.

 
Preparation method of hexagonal boron nitride nano-sheet
 
There are two types, bottom-up and top-down. Bottom-up refers to the synthesis of hexagonal boron nitride nanosheets by chemical synthesis, and top-down refers to the removal of large pieces of hexagonal boron nitride Peel off into hexagonal boron nitride nanosheets.
 
Chemical vapor deposition (CVD), mechanical peeling method, thermal peeling method
Liquid phase stripping
1) Ultrasound
2) Hummer-like method
3) Alkali melting method
4) Fluorination method

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